S/S Insulated ThermoS 991

Stainless Steel thermos bottles with glass refills

• High material: stainless steel body, plastic stopper, glass refills
• Capacity: 3.2L
• Customized logo are welcome
• Handle can be made on it
• Packing:12pc/ a carton, with the PP bag and the color or white inner box , individal export standard packing
• After 24 hours heat preservation in accordance with international standards
• the glass refill keep above 70 centigrade degree after 24 hours.
• we have decades of the experiences in the glass refill areas
• we have many materials, such as the stainless steel ,iron, aluminum ,plastic , 500 variety and specifications.
• we have given you a very favorable price

How to test insulation quality of the vacuum flask?

• Check the inside (that is, the suction mouth) is intact, if there is a break between layers is damaged inside the vacuum, lost heat preservation ability.

• Look inside presence of blowout trace.

• See if bottle is round. If you don't round bottle, bottle stopper can't seal, will reduce the heat preservation ability.

•Fill it with boiling water and cap it.

•Measure its temperature with a thermometer every hour or two and see what the temperature graph looks like

My company production is not only superior quality, and economy, and fashion.